Marcos Gileno wrote:
Hi there people!
I have a linux box as a multi-homed host, 3 interfaces, and I want to
route a multicast traffic that comes in one of the interface to another,
let´s say, eth0 receveis the multicast and I want eth1 to forward it.
I guess you need a daemon like smcroute
www.cschill.de/smcroute/ was OK on 2.6s last time I tried.
I only ever did enough with multicast routing to get what I wanted
working, so don't know all the ins and outs, but for locally generated
traffic it seems that the interface with the mcast route will get it.
Maybe it's because I was comparing pppX and ethX rather than eths, but
by default local generated mcast would go out on ppp0(default route
created by pppd) which was not what I wanted, doing -
ip ro add dev br0 224.0.0.0/4
stopped it going out on ppp0 - Maybe what you see is because tcpdump
puts ethX into promisc or something.
Andy.
